期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
Solution chemistry back‐contact FTO/hematite interface engineering for efficient photocatalytic water oxidation 被引量:1
1
作者 Karen Cristina Bedin Beatriz Mouriño +6 位作者 Ingrid Rodríguez-Gutiérrez João Batista Souza Junior Gabriel Trindade dos Santos jefferson bettini Carlos Alberto Rodrigues Costa Lionel Vayssieres Flavio Leandro Souza 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2022年第5期1247-1257,共11页
This work describes a simple yet powerful scalable solution chemistry strategy to create back‐contact rich interfaces between substrates such as commercial transparent conducting fluorine‐doped tin oxide coated glas... This work describes a simple yet powerful scalable solution chemistry strategy to create back‐contact rich interfaces between substrates such as commercial transparent conducting fluorine‐doped tin oxide coated glass(FTO)and photoactive thin films such as hematite for low‐cost water oxidation reaction.High‐resolution electron microscopy(SEM,TEM,STEM),atomic force microscopy(AFM),elemental chemical mapping(EELS,EDS)and photoelectrochemical(PEC)investigations reveal that the mechanical stress,lattice mismatch,electron energy barrier,and voids between FTO and hematite at the back‐contact interface as well as short‐circuit and detrimental reaction between FTO and the electrolyte can be alleviated by engineering the chemical composition of the precursor solutions,thus increasing the overall efficiency of these low‐cost photoanodes for water oxidation reaction for a clean and sustainable generation of hydrogen from PEC water‐splitting.These findings are of significant importance to improve the charge collection efficiency by minimizing electron‐hole recombination observed at back‐contact interfaces and grain boundaries in mesoporous electrodes,thus improving the overall efficiency and scalability of low‐cost PEC water splitting devices. 展开更多
关键词 NANOSTRUCTURE Iron oxide Water oxidation PHOTOANODE Surface engineering Chemical synthesis
下载PDF
多色荧光碳量子点的合成及不同链长度烃的功能化改性(英文) 被引量:5
2
作者 Kayo Oliveira Vieira jefferson bettini +2 位作者 Luiz Fernando Cappa de Oliveira jefferson Luis Ferrari Marco Antonio Schiavon 《新型炭材料》 SCIE EI CAS CSCD 北大核心 2017年第4期327-337,共11页
以多壁碳纳米管(MWCNTs)为原料,经肽键形成氨基功能化后合成出新型多色荧光碳量子点(CQDs)。所制CQDs由准球形石墨纳米晶体(平均尺寸为10 nm)包裹不同烃类,如丙胺、辛胺、十二胺和八乙胺得到的氨基。在CQDs表面引入氮原子和烃类对其荧... 以多壁碳纳米管(MWCNTs)为原料,经肽键形成氨基功能化后合成出新型多色荧光碳量子点(CQDs)。所制CQDs由准球形石墨纳米晶体(平均尺寸为10 nm)包裹不同烃类,如丙胺、辛胺、十二胺和八乙胺得到的氨基。在CQDs表面引入氮原子和烃类对其荧光性能、量子产率和溶解性起重要影响。这种新型有机-溶解CQDs的荧光发射波长取决于激发波长。荧光量子产率根据CQDs表面上烃类取代物的链长而变化。 展开更多
关键词 碳量子点 碳纳米管 荧光 量子产率
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部